STM32F030RCT6的 TIM6定时器无法正常工作

2万 · 2021-8-8 22:50

有没有大神帮忙看一下，什么问题，代码如下：
void TIM6_Init(void)
{
      TIM_TimeBaseInitTypeDef                            TIM_TimeBaseInitStructure;
      NVIC_InitTypeDef                      NVIC_InitStructure;

      RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM6, ENABLE);  //tim6时钟使能,APB时钟48M

      TIM_TimeBaseInitStructure.TIM_Period = 500;
      TIM_TimeBaseInitStructure.TIM_Prescaler = 48000-1;  //定时500ms
      TIM_TimeBaseInitStructure.TIM_ClockDivision = 0 ; //TIM_CKD_DIV1  分频系数为1
      TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up; //向上计数
      TIM_TimeBaseInit(TIM6, &TIM_TimeBaseInitStructure);

      NVIC_InitStructure.NVIC_IRQChannel = 17;//TIM6_DAC_IRQn //定时器6中断
      NVIC_InitStructure.NVIC_IRQChannelPriority = 1; //优先级0
      NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
      NVIC_Init(&NVIC_InitStructure);

//       TIM_ClearITPendingBit(TIM6,TIM_IT_Update);

      TIM_ITConfig(TIM6,TIM_IT_Update,ENABLE); //允许定时器6更新中断
      TIM_Cmd(TIM6,ENABLE); //使能定时器6
}

void TIM6_DAC_IRQHandler(void)
{
      if(TIM_GetITStatus(TIM6,TIM_IT_Update) != RESET) //溢出中断
      {
            LED_TURN;
      }
      TIM_ClearITPendingBit(TIM6,TIM_IT_Update);  //清除中断标志位
//       TIM6->SR &= ~(1<<0);
//             LED_TURN;
}
//==

1万 · 2021-8-8 22:52

怀疑没有进入中断

1万 · 2021-8-8 22:57

HAL库试一下

1万 · 2021-8-8 23:01

检查你的startup_stm32f030.s文件，确认下里面有没有TIM6_IRQHandler定时器中断，没有就换启动文件或者自己参考其它的添加试试

2万 · 2021-8-8 23:03

启动文件截取：
__Vectors    DCD    __initial_sp                ; Top of Stack
            DCD    Reset_Handler                ; Reset Handler
            DCD    NMI_Handler                   ; NMI Handler
            DCD    HardFault_Handler             ; Hard Fault Handler
            DCD    0                            ; Reserved
            DCD    0                            ; Reserved
            DCD    0                            ; Reserved
            DCD    0                            ; Reserved
            DCD    0                            ; Reserved
            DCD    0                            ; Reserved
            DCD    0                            ; Reserved
            DCD    SVC_Handler                   ; SVCall Handler
            DCD    0                            ; Reserved
            DCD    0                            ; Reserved
            DCD    PendSV_Handler                ; PendSV Handler
            DCD    SysTick_Handler             ; SysTick Handler

            ; External Interrupts
            DCD    WWDG_IRQHandler             ; Window Watchdog
            DCD    PVD_IRQHandler                ; PVD through EXTI Line detect
            DCD    RTC_IRQHandler                ; RTC through EXTI Line
            DCD    FLASH_IRQHandler             ; FLASH
            DCD    RCC_IRQHandler                ; RCC
            DCD    EXTI0_1_IRQHandler          ; EXTI Line 0 and 1
            DCD    EXTI2_3_IRQHandler          ; EXTI Line 2 and 3
            DCD    EXTI4_15_IRQHandler          ; EXTI Line 4 to 15
            DCD    TS_IRQHandler                ; TS
            DCD    DMA1_Channel1_IRQHandler    ; DMA1 Channel 1
            DCD    DMA1_Channel2_3_IRQHandler    ; DMA1 Channel 2 and Channel 3
            DCD    DMA1_Channel4_5_IRQHandler    ; DMA1 Channel 4 and Channel 5
            DCD    ADC1_COMP_IRQHandler          ; ADC1, COMP1 and COMP2
            DCD    TIM1_BRK_UP_TRG_COM_IRQHandler ; TIM1 Break, Update, Trigger and Commutation
            DCD    TIM1_CC_IRQHandler          ; TIM1 Capture Compare
            DCD    TIM2_IRQHandler             ; TIM2
            DCD    TIM3_IRQHandler             ; TIM3
            DCD    TIM6_DAC_IRQHandler          ; TIM6 and DAC
            DCD    0                            ; Reserved
            DCD    TIM14_IRQHandler             ; TIM14
            DCD    TIM15_IRQHandler             ; TIM15
            DCD    TIM16_IRQHandler             ; TIM16
            DCD    TIM17_IRQHandler             ; TIM17
            DCD    I2C1_IRQHandler             ; I2C1
            DCD    I2C2_IRQHandler             ; I2C2
            DCD    SPI1_IRQHandler             ; SPI1
            DCD    SPI2_IRQHandler             ; SPI2
            DCD    USART1_IRQHandler             ; USART1
            DCD    USART2_IRQHandler             ; USART2
            DCD    0                            ; Reserved
            DCD    CEC_IRQHandler                ; CEC
            DCD    0                            ; Reserved

__Vectors_End

            EXPORT  WWDG_IRQHandler             [WEAK]
            EXPORT  PVD_IRQHandler                [WEAK]
            EXPORT  RTC_IRQHandler                [WEAK]
            EXPORT  FLASH_IRQHandler             [WEAK]
            EXPORT  RCC_IRQHandler                [WEAK]
            EXPORT  EXTI0_1_IRQHandler          [WEAK]
            EXPORT  EXTI2_3_IRQHandler          [WEAK]
            EXPORT  EXTI4_15_IRQHandler          [WEAK]
            EXPORT  TS_IRQHandler                [WEAK]
            EXPORT  DMA1_Channel1_IRQHandler    [WEAK]
            EXPORT  DMA1_Channel2_3_IRQHandler    [WEAK]
            EXPORT  DMA1_Channel4_5_IRQHandler    [WEAK]
            EXPORT  ADC1_COMP_IRQHandler          [WEAK]
            EXPORT  TIM1_BRK_UP_TRG_COM_IRQHandler [WEAK]
            EXPORT  TIM1_CC_IRQHandler          [WEAK]
            EXPORT  TIM2_IRQHandler             [WEAK]
            EXPORT  TIM3_IRQHandler             [WEAK]
            EXPORT  TIM6_DAC_IRQHandler          [WEAK]
            EXPORT  TIM14_IRQHandler             [WEAK]
            EXPORT  TIM15_IRQHandler             [WEAK]
            EXPORT  TIM16_IRQHandler             [WEAK]
            EXPORT  TIM17_IRQHandler             [WEAK]
            EXPORT  I2C1_IRQHandler             [WEAK]
            EXPORT  I2C2_IRQHandler             [WEAK]
            EXPORT  SPI1_IRQHandler             [WEAK]
            EXPORT  SPI2_IRQHandler             [WEAK]
            EXPORT  USART1_IRQHandler             [WEAK]
            EXPORT  USART2_IRQHandler             [WEAK]
            EXPORT  CEC_IRQHandler                [WEAK]

只能怀疑是库的版本太低了

1万 · 2021-8-8 23:05

怎么个异常法？

1万 · 2021-8-8 23:07

感觉你是想使用STM32F0定时器中断，检查下定时器外设时钟、启动文件。

2万 · 2021-8-8 23:09

还有，建议使用STM32CubeMx配置下，很快出结果。

1万 · 2021-8-8 23:11

工具的选择很重要！

1万 · 2021-8-8 23:14

现在是什么现象啊

1万 · 2021-8-8 23:15

楼主能详细描述一下吗

1万 · 2021-8-8 23:17

看不出来什么问题

1万 · 2021-8-8 23:22

不知道具体现象怎么排除问题啊

1万 · 2021-8-8 23:24

光看代码看不出来什么

1万 · 2021-8-8 23:26

希望楼主详细描述一下

2万 · 2021-8-8 23:29

其实还是不大明白，我再琢磨琢磨吧，多谢了哈先